Solution: Serparate USB controllers and PCI bus lanes per 1 high-pollrate deviceMaxTendency wrote: ↑12 Oct 2020, 16:35While I'm pretty convinced that 8k hz mouse polling is going to be not only noticeable but also impactful , I'm starting to wonder how much keyboard polling will affect this. High keyboard polling has known to destabilize the mouse polling and vice versa.
For example this is a 1khz mouse polling on an optimized setup with a 125hz keyboard. As you can see the variance is quite little, barely 1hz.
This is the same mouse but the keyboard is wooting one set to 1k hz. All of a sudden the variance is 20hz. Looks like windows can't even fully handle 1k hz keyboard and mouse at the same time.
With keyboards now supporting 4k hz polling like the Corsair K100, I'm curious how will this affect the stability of 8k hz mouse polling. Seeing that a 1k hz keyboard is enough to destabilize a mouse set to just 1k hz, a 4k hz keyboard would probably trash the stability of a 8k hz mouse.
Yeah, that was what I thought. Glad my recommendation helped!MaxTendency wrote: ↑15 Oct 2020, 20:58Small update, using the asmedia port for keyboard (the lowest one, right next to the usb-c port) while using top port for mouse seems to minimize if not remove the impact of high keyboard polling on the mouse polls.
Blue is the mouse and red is the keyboard. This combo provided the best polling, pic of polling attached below.
With ultrahigh poll rates, you really need to isolate to one USB chip (and/or separate bus lanes) per high-pollrate device.
PCI-Express USB cards are also another solution that can help this. Plug the keyboard into the motherboard USB, and plug the mouse into the PCI-Express USB. Or do do USB port roulette until you find jackpot.
This would probably become a staple recommendation of the new 2020s-era "Blur Busters Mouse Guide II"
Until the motherboard manufacturers "keeps up with the Joneses" and have a dedicated-USB-chip keyboard port, and a dedicated-USB-chip mouse port for the 2020-2030s esports era of 4000 Hz keyboard + 8000 Hz mouse + >360 Hz monitors + RTX 3080+ framerates.
This Grand gaming computer upgrade supercycle is going to be very interesting. I rarely see so many concurrent upgrades happen. Those now seem to happen only once every 5-10 years, rather than every 2-3 years in the 1990s-2000s. We are seeing a major Vicious Cycle Effect tick-tock (multiple concurrent frequency upgrades).